1996 Jeep Grand Cherokee

Tiny
SCUBERSTEVE16
  • MEMBER
  • 1996 JEEP CHEROKEE
  • 6 CYL
  • 4WD
  • AUTOMATIC
  • 14,700 MILES
Hi, I have a grand cherokee and I have a problem, most likely caused by me. Earlier today, I took my throttle body to my friend who owns a machine shop to have the bottom end bored out. He shaved 4 millimeters out and we put the butterfly back in, and after I re-assembled the throttle body. I disassembled the battery connections to reset the computer and connected it back after a few minutes. I put it back on, and reinstalled all of the wires and started it. First, I got a check engine light, then it idled at 250rpm than after I revved it a few times, the rpms hit 1500. Than I drove it on city streets, and it was hovering around 500rpms. I got to my driveway and put it in park and without touching the gas, it hit 1500rpms through park, reverse, and neutral. If I put it in drive, 2, or 1, its perfectly fine. Any ideas? (I probably screwed myself over just to get a little bit more horsepower out of my tired 4.0l) ive replaced rotor, distributor cap, spark plugs and the wires, and I think the air to fuel ratio is fine, but I could be wrong.
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Thursday, September 9th, 2010 AT 11:02 PM

1 Reply

Tiny
JACOBANDNICKOLAS
  • EXPERT
This is a tough one, but I feel it has to do with the work that was done. As a result or cutting that amount out, the sensors are most likely getting reading that are bad readings outside of the tolerance.
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Friday, September 10th, 2010 AT 10:49 AM

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